Shopify Store Customization & Setup Help -- 2

My Shopify store is already live on a basic theme, but it still looks and feels generic. I need an experienced Shopify specialist who can transform it into a branded, conversion-ready storefront.

Here’s what I’m after:
• Theme design – adapt the current theme (or suggest a better one) so colours, typography and overall layout reflect my brand. I’ll supply high-resolution logos and a simple style guide.
• Navigation menu – streamline the menu structure, set up intuitive collections, and ensure shoppers can reach any product in two clicks or less.
• Product pages layout – rework the template so images, variations, pricing and add-to-cart sections are clean, mobile-friendly and persuasive.

I don’t yet know which apps or plugins will best support marketing, reviews and fulfilment, so I’d like your recommendations and help configuring the ones we choose.

Payment processing is still open; please suggest the most reliable gateways for my target market and walk me through integrating them.

Acceptance criteria:
1. Store passes Shopify’s “Ready to Launch” checklist with no errors.
2. Theme edits render correctly on desktop, tablet and mobile.
3. Navigation and product pages load in under 3 seconds on a standard connection.
4. At least two suitable apps and one payment gateway are installed, configured and tested.

If you’re fluent in Liquid, CSS and the usual toolkit (Dawn or similar themes, Shopify CLI, SEO best practices) and can communicate clearly throughout the process, I’d love to get your rate to get started right away.